Lamp.



W. F. ANKLAM.

LAMP. APPLIOATION mum MAY 1B, 1912.

1,066,460; Patented July 8, 1913.

' ticularly designed for use as head lights a citizen of the United States of America,

and State of Michigan, have invented cersection illustrating certain details.

' tion B, C is the lining and reflector for the case which also 1s of parabolic form having IINITIJD STA'KE S IEITENT OFFICE.

WILLIAM FL ANKLAM, OF DETROIT, MICHIGAN, ASSIGNOR TO C. M. HALL LAMP COM PANY, 011' DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

LAMP.

Specification of Letters Patent.

Patented July 8, 1913.

Application filed May 18, 1912. Serial No. 698,175.

To all whom it may concern:

Be it known that I, WVinmAM F. ANKLAM,

residing at Detroit, in the county of \Vayne tain new and useful Improvements in Lamps, of which the following is a specification, reference being had therein to the accompanying drawings.

-Tho invention relates to lamps more paron motor vehicles and for similar uses, and it is the primary object of the invention to obtain a construction formed essentially oi sheet metal stampings. In the present state of the art it is usual to employ in said structures one or more sheet metal members formed wholly or partially by spinning, and inasmuch as this is a hand operation the cost of manufacture is considerable. On the other hand sheet metal members formed wholly by stamping dies are manufactured at smaller cost, but with lamp constructions as heretofore made and of the desired form, it is difficult to form all of the parts by stampin Thus if any portion of thelamp case is reversely curved or rounded inward, such a part must be made by spinning \Vith the present construction I have over come the difficulty by forming the parting between the lamp body and the door in the plane of maximum diameter, thereby avoiding reversed curves in any one member.

In the drawings, Figure 1- is a longitudinal section through the lamp case; Fig. 2 is a sectional perspective view showing portions of the members ofwhich the lamp is formed, detached, Fig. 3 is a fragmentary A is the body ortion of the case which is preferably of a parabolic form-terminating at its outer end in the curved molding porthe outwardly extending flange D, E is an annular member having a flange F for fitting into the molded portion B of the outer case and extending inward to form a sup porting bearing for the flange D of the lining C. This annular member E is preferably formed with a'stepped section'so as to form a break joint with the door or cover section. G is an'annular member forming the outer face of the door'and which is complementary to the molded portion 13 of the body so that together therewith a rounded head or molding will be produced.- The men bcr (1 has a lining member H which is stepped to be complementary to the stepped annular member 1G and which forms a bearing for the transparent face I and also a seat for the retaining member J for said transparent face, the member J being pro vided with a suitable packing ring J. All of these parts A, C, E, G and H are of such 6 a form that they can be stamped from sheet metal without any spinning operation being necessary.

When the parts are assembled they are secured together by soldering or by other suitable means and the structure is completed by hinge members K the shanks L of which pass through slots in the molding B and are secured by soldering.

To get the proper lighting effect it is necessary to focus the lamp which requires a longitudinal adjustment of the bulb in relation to the parabolic reflector. This I accomplish in a simple manner by providing a tubular bearing M for the lamp at the inner end of the reflector and arranging in said bearing a slidable cylindrical socket member O. To this socket member an adjustable rod 1 is attachedby means of a screw or pin Q passing through a slot in the tubular member M. This rod extends in the space between the reflector C and outer case A to a point adjacent to the annular member E and is then bent perpendicular to said member or parallel to the axis of the socket and is threaded at R to engage a nut S rotatively secured in a bearing T on the flange D.

What I claim as my invent-ion is:

1. In a lamp, the combination with a centrally aperturcd parabolic reflector and an outer ease inclosing the same, of a cylindrical lamp socket member, a tubular guide for said cylindrical socket member secure to said reflector and projecting rearward therefrom in alinement with theaperture therein, a rod secured to said socket extending through the space between said reflector and outer case and having its outer end threaded and extending parallel to the axis of said socketand tube, an annular member connecting the outer end of said reflector and ease, and a rotative nut havinga journal bearing on said annular member and engaging the threaded portion of saidrod to adjust the same and the socket thereby.

2. In alamp, a body member terminating at its outer end in a curved molding, a lining having an outwardly extending flange, an annular member having its outer edge fitted within the molding portion and provided with an inwardly extending flangeparallel to and forming a supporting bearing for the xout'wardly extending flange of the lining,

said annular member having a stepped portionintermediate its edges and a door comprising an annular rounded portion com-' parallel to and forming a supporting bearing for the outwardly extending flange of the' lining, said annular member having a stepped portion intermediate its edges and a door comprising an annular rounded por tion complementary to the curved molding portion, said annular portions having their line of separation that of the maximum diameter of said portions, and a lining mem her for said door portion stepped intermediate its edges to engage the stepped portion of said annular member whereby a break joint is formed between the door and the body.

4:. In a lamp, a body member terminating at its outer end in a curved molding, a lining having an outwardly extending flange, an annular member having its outer edge fitted within the molding portion and provided with an inwardly extending flange parallel to and forming a supporting bearing for the outwardly extending flange of the lining, said annular member having a stepped portion intermediate its edges and a door comprising a curved molding portion of annular confi ration complementary to the curved moldlng portion of the body, a

lining member for said door portion stepped at its outer edge in a curved molding, a lining having an outwardly extending flange, an annular member having its outer edge fitted within the molding portion and provided with an inwardly extending flange parallel to and forming a supporting hearing for the outwardly extending flange of the lining, said annular member having a stepped portion intermediate its edges and a door comprising an annular rounded portion complementary to the curved molding portion, said molded portions having their line of separation that of their maximum diameter, a lining member for said door portion stepped to tq'igage the stepped portion of said annular member whereby a break joint is formed between the door and the body, and an annular member lying in a plane parallel to the plane of separation of said moldings for securing said glass to its seat.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM F. ANKLAM.

Witnesses Y W. J. BELKNAP, JAMES P. BARRY. 

